The Rotorcraft Collective: Caution! Helicopter Wake Turbulence
Helicopters can generate wake turbulence that is equally as hazardous as fixed-wing aircraft. You should avoid operating aircraft within three rotor diameters of any helicopter in a slow hover taxi or stationary hover and use caution when operating behind or crossing the path of a landing and departing helicopter. Watch this video for more tips on avoiding helicopter wake turbulence. Read more about helicopter wake turbulence at https://bit.ly/heliwake.